<!DOCTYPE html>
<html lang="zh-CN" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>错误页面 - 企业官网后台</title>
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.7.2/font/bootstrap-icons.css" rel="stylesheet">
    <style>
        .error-container {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }
        .error-card {
            background: white;
            border-radius: 15px;
            padding: 3rem;
            box-shadow: 0 10px 30px rgba(0,0,0,0.2);
            text-align: center;
            max-width: 500px;
        }
    </style>
</head>
<body>
    <div class="error-container">
        <div class="error-card">
            <i class="bi bi-exclamation-triangle text-warning" style="font-size: 4rem;"></i>
            <h1 class="mt-3">页面未找到</h1>
            <p class="text-muted mb-4">抱歉，您访问的页面不存在或已被删除</p>
            <a href="/admin/messages" class="btn btn-primary">
                <i class="bi bi-arrow-left"></i> 返回消息列表
            </a>
        </div>
    </div>
</body>
</html>
